| 摘要 |
PROBLEM TO BE SOLVED: To provide a seal structure of a swiveling bearing which does not cause the leakage of grease from a bearing internal space, has a low manufacturing cost and materializes easy seal replacement work.SOLUTION: This seal structure is applied to a swiveling bearing in which a plurality of rolling elements 3 are arranged between raceway grooves 1a, 2a of an inner ring 1 and outer ring 2, and the seal structure seals both axial-direction ends of a bearing internal space 5 by a pair of elastic-body made seal body 11. The seal body 11 is composed of a plurality of different bodies which are positioned while being aligned in inside/outside directions of the bearing internal space 5. Base parts 14a, 15a of seals 14, 15, are attached to common seal attachment grooves 10 which are formed in a race ring 1 of one of the inner ring 1 and the outer ring 2. The seal 14 for grease being a seal located at the most inside/outside-direction inside of the bearing internal space 5 radially contacts at its tip, with a peripheral face of the other race ring 2. |
